We tried making /usr a ro minidisk. It did not work for us. When we had to upgrade our kernel using an RPM, it failed since it tried to load files to the /usr which was not owned by the clone.
How did you get around this ? Alan Levy W: 718-403-8020 C: 347-203-0638 Nextel: 172*26*9628 -----Original Message----- From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of Kern, Thomas Sent: Thursday, July 08, 2004 11:51 AM To: [EMAIL PROTECTED] Subject: Re: Linux under VM and Cloning The production copy of the /usr minidisk is NEVER linked RW by anyone. I have a separate maintenance instance where I install and maintain the linux system. It has a /usr minidisk of the same size as the production /usr minidisk. Both minidisks are OWNED by a placeholder named LNXDASD at virtual addresses 1000 and 1001. When I am ready to put a new /usr into production, I properly shutdown the maintenance user and the first of the production servers. I modify the directory entry of the first production user to use the new /usr minidisk (ie change LINK LNXDASD 1000 0592 RR to LINK LNXDASD 1001 0592 RR). Then I bring up the production server and make any local changes necessary like copy files from /usr/upgrade/sbin to /sbin, or /usr/upgrade/etc to /etc. I test that server and when I am satisfied that it works there as well as it did in the maintenance/test server, I move to the next production server and repeat. When ALL production servers are using the new /usr, I DDR copy the production level /usr minidisk (now 1001) to the old minidisk (1000) and modify the maintenance user's directory entry to use the 1000 minidisk for /usr and start all over again. Until this point, my backout is to switch the server back to the old /usr minidisk, ipl and fix local files. /Thomas Kern /301-903-2211 > -----Original Message----- > From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On > Behalf Of Seader, Cameron > Sent: Thursday, July 08, 2004 11:27 > To: [EMAIL PROTECTED] > Subject: Re: Linux under VM and Cloning > > > How did you setup that read-only /usr minidisk? did you link > to a minidisk from VM or is it mounted on another guest as > read-write? > TIA > -Cameron ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
